I personally dont see any harm at all in diabetics eating a snack mid morning or mid afternoon if they want to. Before using a pump and using MDI and twice daily, I always had a small snack in order to keep my bg levels levelled out. I often eat a snack now if I need to or want to. I would not like to bolus every time to eat a snack, that's for sure but everyone's different... some are very busy and some are not.